S15
- 40S ribosomal protein S15
- County Route S15 (California)
- Explorer 11
- Frauenfeld–Wil railway
- GMC Jimmy (S-15)
- Hataki Station
- Ikawadani Station
- LSWR S15 class
- Laffly S15
- Nissan Silvia (S15)
- Ojima Station
- Otaru Station
- Ribosomal S15 leader
- S15 (ZVV)
- S15 (classification)
- S21 (Berlin)
- Sakura-hommachi Station
- Sakuragawa Station (Osaka)
- Sikorsky S-15
- Spalinger S.15
- Stemme ASP S15